bicuspid — /baɪˈkʌspəd / (say buy kuspuhd) adjective Also, bicuspidate /baɪˈkʌspədeɪt/ (say buy kuspuhdayt). 1. having two cusps or points, as certain teeth. –noun 2. Anatomy one of eight such teeth in humans, four on each jaw between the cuspid and the… … Australian English dictionary